Autonomous mode change circuit for solenoid drivers
US-11087911-B2 · Aug 10, 2021 · US
for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current {(with switching regulator H01H47/325)}
for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current {(with switching regulator H01H47/325)} · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H47/04 |
| Official title | for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current {(with switching regulator H01H47/325)} |
| Display label | for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current {(with switching regulator H01H47/325)} |
| Total patents | 96 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 7 |
| 2017 | 9 |
| 2018 | 13 |
| 2019 | 9 |
| 2020 | 8 |
| 2021 | 12 |
| 2022 | 11 |
| 2023 | 7 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluid dispensing apparatus including phased valves and methods of dispensing fluid using same
US-10953423-B2 · Mar 23, 2021 · US
Bus configured latching solenoid
US-10829967-B2 · Nov 10, 2020 · US
Relay control device
US-2020321177-A1 · Oct 8, 2020 · US
Circuit arrangement for operating electromagnetic drive systems
US-10755881-B2 · Aug 25, 2020 · US
Contactor having electronic coil control
US-10692675-B2 · Jun 23, 2020 · US
Autonomous mode change circuit for solenoid drivers
US-2020135373-A1 · Apr 30, 2020 · US
Systems and methods for controlling operation of a valve
US-2020101480-A1 · Apr 2, 2020 · US
Relay operation state maintaining device and electronic device including the same
US-2020088792-A1 · Mar 19, 2020 · US
Circuit for reducing the power consumption when driving a relay
US-10593498-B1 · Mar 17, 2020 · US
Air conditioner
US-2019368767-A1 · Dec 5, 2019 · US
Relay control device
US-10460896-B2 · Oct 29, 2019 · US
Fluid dispensing apparatus including phased valves and methods of dispensing fluid using same
US-2019321844-A1 · Oct 24, 2019 · US
Abnormality detection method for electromagnetic relay, abnormality detection circuit for electromagnetic relay, and abnormality detection system
US-10424449-B2 · Sep 24, 2019 · US
Relay with first and second electromagnets for placing and keeping a contact in a closed state
US-10395870-B2 · Aug 27, 2019 · US
Damper with power drive electronics
US-10393207-B2 · Aug 27, 2019 · US
Systems and methods for controlling relays
US-10256065-B2 · Apr 9, 2019 · US
Controllable tripout for an electrical circuit breaker
US-10249461-B2 · Apr 2, 2019 · US
Systems and methods for controlling relays
US-10170257-B2 · Jan 1, 2019 · US
Circuit arrangement for operating electromagnetic drive systems
US-2018366288-A1 · Dec 20, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H47/04?
- CPC H01H47/04 is the Cooperative Patent Classification code for “for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current {(with switching regulator H01H47/325)}.”
- How many patents are filed under CPC H01H47/04 (for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current {(with switching regulator H01H47/325)})?
- Our database includes 96 publications tagged with this CPC code.
- Is patent activity under CPC H01H47/04 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).